Perhaps you should try some spelling variations:
trinh quang » tinh quang, trinh quan, tranh quang
quang tran » quang tuan, quang trung, quang thanh
hieu suat » hieu luat, hieu qua
minh toan » tinh toan, manh toan, minh tuan
toan tuan » tran tuan, toan quan, doan tuan
kiem toan » ke toan, kiem tra
tran van » luan van
van hieu » cao hieu
tuan va » toan va, luan va, quan va
va kiem » van kien

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh quang tran van hieu suat ) or ( minh toan tuan va kiem toan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh quang tran van hieu suat ) OR ( minh toan tuan va kiem toan ))*.